Python global variable

Question

def say_boo_twice():
  global boo
  boo = \'Boo!\'
  print boo, boo

boo = \'boo boo\'
say_boo_twice()

The output is

Boo! Bo

Answer 1

global boo is global only inside method say_boo_twice and has been re-assigned a value inside of this method. You need to understand the lexical or scope where it can be global or what you want it to be. In this context, just before printing, it was assigned a value of 'Boo!' and that is what it correctly printed.